How do I run firefox in safe mode?

some how I deleted my pull down menus and toolbars - the knowledge base says I can get them back but first I should start by running firefox n safe mode

Firefox 3.6+ versions have a feature to allow the user to hide the Menu bar.
Hit the '''Alt''' key to temporarily show the Menu bar, then open View > Toolbars and select Menu bar, so it has a check-mark. 
The F10 can also be used on most PC's to temporarily reveal the Menu bar.
https://support.mozilla.com/en-US/kb/Menu+bar+is+missing

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Firefox crashes when any facebook mafiawars link is clicked, it only works if i run firefox in safe mode. Why? & How do i fix it?

after being auto-updated to version 15, firefox crashes when any facebook mafiawars link is clicked, tried versions 3.6.12 to 15 without any change and even updated java but it only works if i run firefox in safe mode. what happened and how to i fix this major problem? the only info i found was about pogo and said to update to version 15 but thats what caused the problem in the first place...

Hi,
Unfortunately we had a data base error today and lost some user accounts when we had to go back to our backups. If you have started this thread, your's is one of those. Since we can not recreate your account, please sign-up for a new account here to reply to the forum messages:
https://support.mozilla.org/users/auth
You can use the same username and email address as before. We are very sorry for the inconvenience.

I can not find mozilla firefox folder in Start All Programs how can i open firefox in safe mode i am using win7 and firefox 4.ob10 ?

i can not find mozilla firefox folder in Start>All Programs> how can i open firefox in safe mode i am using win7 and firefox 4.ob10 ?

A quick workaround - Go to Start > Run, and paste this in the box: "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -safe-mode

How do I start firefox in safe mode on a Mac as the equivalent of holding option key whilst starting doesn't open dialogue on Mac?

I am trying to reset toolbars and am following firefox's help instructions. How do I start firefox in safe mode on a Mac as the equivalent of holding option key whilst starting doesn't open a dialogue box on the Mac?

Thanks Morbus.. I hadn't noticed that but it was already set at Mac. I tried it again and it worked this time... but alas my main problem persists:
My back and forward buttons don't work in Firefox and I've lost all of my bookmarks! I've tried a few of the suggestions but without success at the moment.
Particularly unhelpful are the instructions to back-up your lost bookmarks - which I can't do cos they're lost!!

Plugin-container.exe is using 90-100% CPU - even while running Firefox in safe-mode. Can I fix this?

I am using fire fox 5.0 (after using 3.6 for what seems like forever) and the plugin-container.exe has been sucking up my CPU power like a vampire. It had been doing that in 3.6 but not as much. I figured if I upgraded the problem would go away, but no, it has not. After reading some other similar posts, I ran Firefox in safe mode with no plugins running and sure enough after browsing for a bit it started running slower and used 90-100% of my CPU. Is there any way to fix this issue? Or am I doomed? Thanks in advance for any help you may be able to provide.

That's supposed to show you the problem isn't Firefox, don't know how successful that actually is. You can delete it so that it starts up again. Susggest restarting Firefox when you see it has used about an hour of CPU time as the next hour of CPU time will take shorter to get there and you will be locked out.
Also see this -- the solution on all the items seem to fix a lot of problems with the places.sqlite database.
:'''freezing at regular intervals''': http://blog.bonardo.net/2011/09/30/is-your-firefor-freezing-at-regular-intervals

How can I open firefox in safe mode?

I can no longer find a way to open firefox in safe mode, as I could before the latest version

<div>This is still the same although it might be less easy to find the Help menu that is now located in the "3-bar" Firefox menu button drop-down list [[Image:Help-29]]</div>
See also:
*https://support.mozilla.org/kb/how-to-make-new-firefox-look-like-old-firefox
*https://support.mozilla.org/kb/common-questions-after-updating-to-new-firefox
*https://support.mozilla.org/kb/learn-more-about-the-design-of-new-firefox
You can use one of these to start Firefox in [[Safe Mode|Safe Mode]]:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Firefox menu button -> Help -> Restart with Add-ons Disabled
*https://support.mozilla.org/kb/Safe+Mode

Adobe flash keep crashing , i tried installing again and still get crashing , i run firefox in safe mode with adds on disabled but still crashing , can you help

unable to play any video or watch you tube , as soon as i pressed play ,adobe crached , reloading page several times and still not working

Is it the flash, or Firefox crashing?
'''[https://www.adobe.com/software/flash/about/ Flash Player Test Page]'''
If you have problems with current Shockwave Flash plugin versions then check this:
* see if there are updates for your graphics drive drivers
'''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration'''
* disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
'''https://forums.adobe.com/message/4468493#TemporaryWorkaround'''
* disable hardware acceleration in the Flash plugin
'''https://forums.adobe.com/thread/891337'''
See also:
* '''http://kb.mozillazine.org/Flash#Troubleshooting'''

Every time I reboot my computer, I lose Firefox. Safe mode window won't stay up, after a half hour or so, I usually find a way to open it, but what's causing it

When I reboot my computer, the Firefox icon is still sitting there, but will not open the program. I sometimes have luck opening from a link from another software program, but there is no logic. When I try to "Start/Run" firefox in safe mode, it still will not stay on the screen - just a brief flash. This is frustrating! This has been going on for at least a couple of months, help!

Thanks, that may be the problem ... I just have Windows Firewall, but have recently trialed Norton for about a month ... did not buy it, but it caused other issues with my computer, as well. I uninstalled it, but (for instance) my Flash kept crashing, etc.

How can/do I compeletely uninstall/delete unwanted "Web Developer Extension" that was automatically installed on my computer without permission when I reset Firefox in safe mode?

Reset Firefox in safe mode. Clicked 'Help', then "Restart with Add-ons disabled"
After restarting, Checked "Reset all preferences to Firefox default"
When done, found three new Tabs, one asking if I wanted to continue previous session, a second from Firefox, saying "Welcome to Firefox"
And a third with the heading, "Web Developer Installed"
Clicking on Tab took me to: http://chrispederick.com/work/web-developer/installed/11/ saying "The Web Developer Extension has been successfully installed"
The new website, which also asks for donations, doesn't look related to Firefox. Regardless, NO ONE ASKED MY PERMISSION to install
AM CONCERNED ABOUT UNWANTED EXTENSION AND WHAT ELSE IT MAY DO WITHOUT MY KNOWLEDGE OR CONSENT.
I DO NOT WANT Chris Pendrick's "extension" on my computer, but don't know how to completely delete/uninstall.
Can anyone help?

https://support.mozilla.com/en-US/kb/Uninstalling%20add-ons#w_how-to-uninstall-extensions-and-themes

Firefox installed the latest version. Now my google browser, history etc. doesn't work anymore. It doesn't respond. I can't run searches from the browser. youtube button is missing. I've tried opening firefox in safe mode but that doesn't work.

# Question
firefox installed automatically the latest version. Now my google browser, history etc. doesn't work anymore. It doesn't respond. I can't run searches from the browser. youtube button is missing. I've tried opening firefox in safe mode but that doesn't work

A possible cause is a problem with the file places.sqlite that stores the bookmarks and the history.
*http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
What happens if you open Firefox in Save mode?
*https://support.mozilla.com/kb/Safe+Mode
*Help > Restart with Add-ons Disabled

Firefox crashes immediately upon opening though I can run it in safe mode

I recently performed a system restore which took my computer back to 2/27/11. I found that after this I was unable to open firefox, the program crashed immediately. I have been able to run it in safe mode. I tried uninstalling and reinstalling the program but it has not helped. I have windows 7 and an Acer Aspire computer.
Thanks!

Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
* https://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
* http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
See:
* http://kb.mozillazine.org/Firefox_crashes
* https://support.mozilla.com/kb/Firefox+crashes
If you have submitted Breakpad crash reports then post the IDs of one or more Breakpad crash reports (bp-xxxxxxxx-xxxxxxxxx-xxxx-xxxxxxxxxxxx). You can find the IDs of the submitted crash reports on the about:crashes page. You can open the about:crashes page via the location bar, like you open a website.
See:
* http://kb.mozillazine.org/Breakpad (Mozilla Crash Reporter)
* https://support.mozilla.com/kb/Mozilla+Crash+Reporter
* https://developer.mozilla.org/en/How_to_get_a_stacktrace_for_a_bug_report

Have to run windows in safe mode with network to have browserws work correctly. using IE and Firefox. Fist web site comes in correctly next tab just sites wai

have to run windows in safe mode with network to have browserws work correctly. using IE and Firefox. Fist web site comes in correctly next tab just sites waiting for web site Help

If it works in Windows Safe mode then you have a problem with other software, possibly security software or a system driver, that is running on your computer. 
It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating

How to start firefox in safe mode from the command line

This is for Window XP, firefox 19

Hello jjfirefox77
"C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode
thank you

I use Session Manger and love this add on. Now for some reason I must start Firefox in Safe Mode and then close it and then reopen normally and it appears that session manger is causing this problem. How do I fix this??

I suddenly need to start Firefox in Safe Mode or it will not open. The problem after deleting extensions and adding profiles appears to be Session Manager which I have been using successfully for along time and really enjoy its usefulness. is there a fix to this problem?? Thank you.

I'm not using that extension, so I do not know which files are used in addition to sessionstore.js and you need to check the profile folder yourself for suspect files.
This can be a problem with the file [http://kb.mozillazine.org/sessionstore.js sessionstore.js] in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder] 
Delete the files sessionstore.js and sessionstore.bak and any existing files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js .
See http://kb.mozillazine.org/Session_Restore

Your site recommended that I start Firefox in "safe mode," but despite following the steps, I could not do so, why?

I have used Firefox as my browser for more than seven years, maybe ten.
After the two recent "updates" over the last six weeks or two months, Firefox has been horrible.
It constantly hangs and crashes, cannot access certain basic website, slows start-up, use, and shutdown, and, according to AVG, is using massive memory. Two weeks ago, AVG actually came out and directly recommended that Firefox be completely disabled.
I tried the Firefox recommendation to reset Firefox to default settings. It didn't work.
I tried the Firefox recommendation to start Firefox in "safe mode." But despite following their instructions as to how to do so, I could not start Firefox in safe mode; it just bounced back to the recommendation page.
It seems that Firefox has destroyed itself, and made itself completely unusable as a browser.
At this point, I see little alternative to removing Firefox completely from my computer and changing to Internet Explorer as my browser.
Has anyone had a similar experience, and similar problems, or does anyone have any ideas as to how I can try to salvage Firefox and restore it as a usable browser? Thanks to all who have any comments or ideas.

Please update to the current Firefox 33.1.1 release.
*Help > About Firefox
*https://support.mozilla.org/kb/update-firefox-latest-version.
*https://support.mozilla.org/kb/Updating+Firefox
The Firefox version that you currently run is no longer supported with security updates.
*It is important to update Firefox and add-ons to the latest version to get all security fixes.
You can try to disable OMTC and leave hardware acceleration in Firefox enabled.
*about:config page: layers.offmainthreadcomposition.enabled = false
You can open the about:config page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
*http://kb.mozillazine.org/about:config
You can check if you can start Firefox in [[Safe Mode|Safe Mode]] by holding down the Shift/Options key.
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

How do I run firefox in safe mode?

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